Can a stimulating hobby decrease your risk of Alzheimer's disease? Maybe, but don't count on it

Some days all I want to do when I get home is plop down in front of the TV set and let my brain go blank. You probably know the feeling. But if two groups of neurologists--from University Hospitals and Case Western Reserve in Cleveland, Ohio--are right, we may all live to regret our tube-trolling ways. At a meeting of the American Academy of Neurology last week, they reported that people who remain active outside of work by taking up such stimulating activities as painting, gardening or playing a musical instrument are three times less likely to develop Alzheimer's disease as...